Glutamyltransferase 130 IU/L is more serious; normal values are less than 40 IU/L for men and less than 45 IU/L for women; elevated glutamyltransferase is commonly seen in diseases such as hepatitis, fatty liver, and myocardial infarction. Glutamyltransferase is mainly found on hepatocyte membranes and microsomes and is involved in the metabolism of glutathione; it is abundant in kidney, liver and pancreas. 1. Hepatitis: Inflammatory diseases of the liver caused by viral infections, drugs and immune effects, etc., which can lead to high glutamyl transferase after the liver function is impaired. 2. Fatty liver: Nutritional factors, lifestyle, age, gender and immune status are all important factors in the formation of fatty liver; patients with fatty liver will also have elevated glutamyltransferase in the blood. 3. Myocardial infarction: coronary atherosclerosis is the main cause of myocardial infarction, and the glutamyl transferase in the blood of patients will also be elevated. If glutamyltransferase is high and persists without relief, prompt medical attention and treatment are needed.